Garmin GT12M-THF Transducer
Best flush mount sonar for serious coastal anglers seeking precision.
This flush-mount transducer is the gold standard for midsize vessels needing reliable, high-definition sonar without the drag of external hardware. While the specific deadrise requirement limits your installation options, the trade-off is a clean, streamlined hull and exceptionally clear target separation in both salt and freshwater.
$359.95
at
The GPS Store
Who it's for
- Performance-focused boaters seeking a clean, low-profile hull setup
- Coastal anglers targeting fish in moderate depths
- Serious fishermen tracking water temperature shifts to find active schools
Who should skip it
- Casual boaters hesitant to make structural modifications to their vessel
- Owners of boats with complex or variable hull geometries
- Deep-sea explorers requiring maximum depth penetration for offshore fishing
Performance breakdown
Target Separation
Mid-band CHIRP technology delivers crisp, distinct returns for accurate fish identification.
Build Durability
Rugged bronze housing ensures long-term reliability in harsh saltwater environments.
Depth Capability
Solid performance for coastal fishing, though limited for deep-sea exploration.
Installation Versatility
Strict deadrise requirements limit compatibility to specific hull designs.
Signal Clarity
Consistent frequency output provides reliable underwater data without excessive noise.
System Integration
Seamlessly syncs with Garmin marine electronics for a unified dashboard experience.
Key Specs
Transducer Type
Thru-Hull
Sonar Type
Mid-band CHIRP
Power Output
350 Watts
Supported Frequencies
85-165 kHz
Beamwidth
24-16 degrees
Max Depth
1200 feet
Housing Material
Bronze
Cable Length
50 feet
Mounting Style
Thru-hull (0-degree tilt)
Connector
8-Pin
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